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the pass code to mrs.kyles alarm system is 6 digits.each can be from 0 - 6 and can only be used once.how many different combinations can mrs.kyle come up with?

  • math -

    Assuming the code may start with a zero, there are 7 digits to fill 6 spaces.
    So 7*6*5*4*3*2 = 5040

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